Structural column



(No Model.) 2 Sheets-Sheet 1.

v A. OOFFIN. I STRUCTURAL COLUMN.

Patented June 28, 1892.

ms mums versus cm. FKOTO-UTHD.. msumaynu, n. c.

UNITED STATES PATENT OFFICE.

AMORY COFFIN, OF PH(ENIXVILLE, ASSIGNOR TO THE PI-ICENIX IRON COMPANY,OF PHILADELPHIA, PENNSYLVANIA.

STRUCTURAL COLUMN.

SPECIFICATION forming part of Letters Patent No. 477,925, dated June 28,1892.

Application filed March 5 1892. Serial No- 423,859. (No model.)

To all whom it may concern:

Be it known that I, AMORY COFFIN, a citizen of the United States,andaresident of Phoenix'- ville, Chester county, Pennsylvania, haveinvented certain Improvements in Structural Columns, of which thefollowing is a specification.

The object of my invention is to construct a continuous column forstructural metal work made up of sections spliced together andhavingatintervalssupports for floor-girders which do not interfere withthe continuity of the column and do not weaken the same. This ob ject Iattain in the following manner, referonce being had to the accompanyingdrawings, in which- Figure 1 is a side view of a lower portion of acolumn,illustrating my invention. Fig. 1 is a side viewof the upperportion of the column shown in Fig. 1. Fig. 2 is a side view ofsufficient of a column to illustrate my irivention. Fig. 3 is a sectionon the line 1 2, Fig. 1". Fig. at is a section on the line 3 4, Fig. 1".Fig. 5 is a section on the line 5 6, Fig. 1 Fig. 6 is a perspective viewof the coupling. Fig. 7 is a perspective view of one of the brackets.Fig. 8 is asectional view of the column at a bracket. Fig. 9 is a viewshowing the placing of two or more brackets to accommodate girders ofdifferent depth. Fig. 10 is a section on the line 7, 8, Fig. 9; andFigs. 11 and 12 are perspective views illustrating different forms ofbrackets.

In constructing large-buildings the present plan is to support thefloors of the building by means independent of the walls. This isaccomplished by erecting a metallic frame-work composed of columns andclossgirders, and the usual method prior to my invention has been toextend the columns from floor to floor,

having caps and bases for each section between floors and securing thecrossbeams to the columns at the junction of the two columns by havingthe cap or base of sufficient depth to accommodate the beam; but thismethod of construction necessitates a large number of parts andconsiderably increases the cost. By my improvement I dispense with allintermediate bases and caps and can support the floors at any pointdesired with out interfering in any manner with the continuity of thecolumn.

Referring to the drawings, A'is the column, secured in a base B of anysuitable construction and having a cap -C at its upper end. This columnis of the form known as the phoenix column, being made up of sections,as shown in Fig. 5, eachsection beingsegmental in form and havingflanges, the flanges of the adjoining sections being secured together byrivets or other fastenings; butit will be understood that the segmentsneed not necessarily be curved,but maybe shapedas shown by dotted linesin Fig. 5, or may be of other forms.

Between the flanges are filler-plates a, punctured so as to receiverivets or bolts. I utilize a portion of the space occupied by thefiller-plates for the girder-supportifigbracket.

plates and the coupling-plates t'or uniting two of the sections togetherby discontinuing the filler-plates at the points where the brackets orcouplings are attached. I discontinue the filler-plates a a shortdistance from each end of each section of the column and insert thereinthe coupling D, (shown in Figs. 3 and 6,)

which in the present instance is a structure composed of a plate b,extending from side to side of the column and having rivet-holes c c ateach side and plates (1 d at right angles to the plate I) and securedthereto by anglebars 6 e. The plates 01 d are alsoprovided with holes 0c at their edges. Thus when the coupling D is inserted between the twosections of the column the holes 0 c i nthe plates 1 and d align withthe holesi'n the flanges of the sections of the column. Rivets or boltsare then passed through the holes, and the two sections of the columnare thus secured together by the coupling D and the coupling- I platesform a continuation of the filler-plates. In order to support the beamsor girderswhich carry tire flo0rs,I discontinue the fillerplates at thepoints 00 m, Fig. v2, andmount therein a plate E, (shown in Figs. 7 and8-,)

having orifices f at each side, which align with the holes in theflanges of the column-sections, and I extend the plate beyond the holes,so as to form a bracket E, which supports the girder or beam. I bolt tothis bracket ang1eplates 9 g, which give increased bearing for thegirder, although these extensions may be bent from the metal of thebracket, as shown in Fig. 11, Without departing from my invention.

When the girder is continued on the opposite side of the column, Iextend the plate to form a bracket E as shown by dotted lines 1 in Fig.8, and where the beams or girders are on four sides of the column I maymake the bracket as shown by dotted lines in Fig. 6, constructing theplates the same as the coupling-plate D, and, in fact, in some cases thecoupling-plate and bracket may be combined 1 where the columns abut eachother on the floor-line.

In Figs. and 10 I have shown the bracketplates E for different girdersarranged one above the other, so that the girders of ditferi ent depthused for long or shortspans can be readily supported upon the samecolumn.

In Fig. 12 I have shown abracket-plate having two brackets of differentheights, so as to accommodate different depths of girders. It I will beseen by the above description that I have a structure the columns ofwhich are continuous from top to bottom of the building and at any pointthroughout the length of the column brackets can be projected to supportbeams or girders of any depth and that the couplings between sections.do not interfere in any manner with the brackets and do not projectbeyond the line of the column. I

It will be understood that this construction may be applied to columnshaving more or less than four segments. The angle of the cross-plateswill vary according to the number of segments.

I claim as my invention 1. The combination, in a sectional column madeup of a series of segments secured together, of a bracket-plate mountedbetween two or more of the segments and extending beyond the line of thecolumn with a seatbracket secured to said plate to support a girder orbeam, substantially as described.

2. The combination of two abutting segmental columns and filler-platesbetween the segments with a coupling made of plates, said couplingextending into the two columns between the segments and bolted to saidsegments, substantially as described.

3. The combination of the two abutting columns and the plate extendinginto the two columns and secured to each column and having a projectionor projections extending beyond the line of the column for supportinggirders or beams, substantially as specified.

4. The combination ofa segmental column and a platesecured between thesegments and extending on each side of the column with seat-bracketssecured to the plate on each side of the column, substantially asdescribed.

5. The combination of a segmental column with a plate secured betweenthe segments and having extension-brackets out of line with each otherto accommodate beams or girders of different heights, substantially asset forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

AMORY COFFIN.

Witnesses:

H. F. REARDON, HENRY HoWsoN.

